M6c4

26問 • 1年前

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通報

問題一覧

Chemical oxidation is the

direct combination of a metal with the oxygen in the atmosphere .

Oxidation rate of a metal usually

increase with an increase in temperature.

In the galvanic action process

the anode always corrodes

In the process of crevice corrosion, the anodic are is at

the bottom of the crevice

When a metal is in contact with a fluid which promotes the growth of microbiological contaminants , such as in kerosene fuel and toilet waste fluids,

microbiological corrosion is a present danger.

Intergranular corrosion is caused by

incorrect heat treatment.

Magnesium alloys

are not susceptible to intergranular corrosion.

is a microbial fungal growth in kerosene fuel.

Hormocoins resinae

Intergranular corrosion

often cannot be detected and has no visual surface indication.

can be recognized on aluminum alloys by the appearance of grayish powder fuzzy deposit or a whiskey growth

Mercury contamination

The oxide film formed on the surface of aluminium is

non-porous .

Corrosion will spread more rapidly when metals are exposed to

high temperatures.

Corrosion at the grain boundaries is called

intergranular

attack along the grain boundaries, or immediately adjacent to grain boundaries,

Intergranular corrosion

Intergranuler corrosion can be confirmed by

X-ray inspection.

Stress corrosion is

corrosion due to fretting.

is the tendency of metals to revert to the thermodynamically more stable, oxidized, state

Corrosion

is another name for electrolytic, electro‑chemical or dissimilar metal corrosion.

Galvanic corrosion

is a form of extremely localized corrosion that leads to the creation of small holes in the metal may be caused by localized damage to protective coating.

Pitting corrosion

Corrosion caused by galvanic action is the result of

contact between two dissimilar metals.

Microbiological corrosion refers to corrosion and ensuing loss of metal caused by

biological organisms.

is NOT one of the conditions for corrosion to occur.

The presence of a cladding film

The appearance of corrosion on Steel is normally as

reddish brown (rust).

The appearance of corrosion on Aluminium alloy is normally as

whitish powder.

is not one of the listed condition for corrosion to be occurred.

torque load

Corrosion may be recognised by the appearance of ‛cocoa’ powder staining on steels is called

Fretting corrosion.

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問題一覧

Chemical oxidation is the

direct combination of a metal with the oxygen in the atmosphere .

Oxidation rate of a metal usually

increase with an increase in temperature.

In the galvanic action process

the anode always corrodes

In the process of crevice corrosion, the anodic are is at

the bottom of the crevice

When a metal is in contact with a fluid which promotes the growth of microbiological contaminants , such as in kerosene fuel and toilet waste fluids,

microbiological corrosion is a present danger.

Intergranular corrosion is caused by

incorrect heat treatment.

Magnesium alloys

are not susceptible to intergranular corrosion.

is a microbial fungal growth in kerosene fuel.

Hormocoins resinae

Intergranular corrosion

often cannot be detected and has no visual surface indication.

can be recognized on aluminum alloys by the appearance of grayish powder fuzzy deposit or a whiskey growth

Mercury contamination

The oxide film formed on the surface of aluminium is

non-porous .

Corrosion will spread more rapidly when metals are exposed to

high temperatures.

Corrosion at the grain boundaries is called

intergranular

attack along the grain boundaries, or immediately adjacent to grain boundaries,

Intergranular corrosion

Intergranuler corrosion can be confirmed by

X-ray inspection.

Stress corrosion is

corrosion due to fretting.

is the tendency of metals to revert to the thermodynamically more stable, oxidized, state

Corrosion

is another name for electrolytic, electro‑chemical or dissimilar metal corrosion.

Galvanic corrosion

is a form of extremely localized corrosion that leads to the creation of small holes in the metal may be caused by localized damage to protective coating.

Pitting corrosion

Corrosion caused by galvanic action is the result of

contact between two dissimilar metals.

Microbiological corrosion refers to corrosion and ensuing loss of metal caused by

biological organisms.

is NOT one of the conditions for corrosion to occur.

The presence of a cladding film

The appearance of corrosion on Steel is normally as

reddish brown (rust).

The appearance of corrosion on Aluminium alloy is normally as

whitish powder.

is not one of the listed condition for corrosion to be occurred.

torque load

Corrosion may be recognised by the appearance of ‛cocoa’ powder staining on steels is called

Fretting corrosion.